CN216002170U - Hybrid power transmission system for range-extending electric vehicle - Google Patents
Hybrid power transmission system for range-extending electric vehicle Download PDFInfo
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- CN216002170U CN216002170U CN202122161642.8U CN202122161642U CN216002170U CN 216002170 U CN216002170 U CN 216002170U CN 202122161642 U CN202122161642 U CN 202122161642U CN 216002170 U CN216002170 U CN 216002170U
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- speed reducing
- generator
- transmission system
- driving motor
- stage speed
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Abstract
The utility model discloses an increase form hybrid power transmission system for electric motor car, including gearbox housing, engine, generator, driving motor, with one-level reduction gears that driving motor connects and the second grade reduction gears who is connected with one-level reduction gears, second grade reduction gears with generator and differential mechanism assembly are connected, the generator with the engine is connected, and differential mechanism assembly, one-level reduction gears, second grade reduction gears, generator and driving motor are located gearbox housing's inside. The utility model discloses a hybrid transmission system for range extending type electric motor car, the integrated level is high, compact structure, and is with low costs, efficient.
Description
Technical Field
The utility model belongs to the technical field of the electric motor car, specifically speaking, the utility model relates to an increase form hybrid transmission system for electric motor car.
Background
With the increasing strictness of national emission and fuel consumption regulations, the conventional fuel vehicles are continuously turning to hybrid vehicles. Although the pure electric vehicle has the advantages of energy conservation, environmental protection and zero emission, the problems of endurance mileage and charging difficulty of the pure electric vehicle are difficult to solve due to the limitation of a power battery technology, a quick charging technology and the infrastructure of a charging pile. Meanwhile, the device suffers from the problem of poor low-temperature performance. The range-extending electric vehicle combines the advantages of the range-extending electric vehicle and the driving shaft, and meanwhile, the engine and the driving shaft are decoupled, so that a large space is provided for the design of a range extender and a special box.
A device integrating an engine and a generator with high efficiency and low emission, namely a range extender, can rapidly charge a power battery and simultaneously supply power to a driving motor system to drive a vehicle to run, and solves the problem of mileage anxiety. At present, an extended range automobile becomes a trend of automobile development, and the power density, efficiency, reliability and integration degree of an extended range device are undoubtedly important factors influencing the extended range automobile development.
The existing extended range automobile mostly adopts a mode that a traditional engine is directly connected with a generator, and a driving motor is separately arranged. The following disadvantages mainly exist in the arrangement mode:
1. the whole device has low volume power density, poor transportability on the original traditional vehicle and pure electric vehicle, low integration level and difficult arrangement of the whole vehicle;
2. the whole device has large mass and large volume, and reduces the power economy of the whole vehicle;
3. the whole system has low efficiency, and the electric energy generated by the generator has long transmission path and high loss;
4. the whole device has complex heat management pipelines;
5. the whole set of device is high in cost.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a hybrid power transmission system for range-extended electric vehicle, aiming at improving the integration level.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: increase form hybrid transmission system for electric motor car, including gearbox housing, engine, generator, driving motor, with the one-level reduction gears that driving motor connects and the second reduction gears who is connected with one-level reduction gears, second reduction gears with generator and differential mechanism assembly are connected, the generator with the engine is connected, differential mechanism assembly, one-level reduction gears, second reduction gears, generator and driving motor are located gearbox housing's inside.
The first-stage speed reducing mechanism comprises a first-stage speed reducing driving gear connected with the driving motor, an intermediate gear meshed with the first-stage speed reducing driving gear and a first-stage speed reducing driven gear meshed with the intermediate gear, and the first-stage speed reducing driven gear is connected with the second-stage speed reducing mechanism.
The secondary speed reducing mechanism comprises an output shaft, a secondary speed reducing driving gear and a secondary speed reducing driven gear, the secondary speed reducing driving gear is arranged on the output shaft, the output shaft is connected with the primary speed reducing mechanism and the generator, and the secondary speed reducing driven gear is connected with the differential mechanism assembly.
The output shaft is connected with the generator through a shaft sleeve.
The utility model discloses a hybrid transmission system for range extending type electric motor car, the integrated level is high, compact structure, and is with low costs, efficient.
Drawings
FIG. 1 is a schematic structural diagram of a hybrid power transmission system for an extended range electric vehicle according to the present invention;
the labels in the above figures are: 1. an engine; 2. a generator; 3. a drive motor; 4. a primary reduction drive gear; 5. an intermediate gear; 6. a primary reduction driven gear; 7. a secondary reduction drive gear; 8. a secondary reduction driven gear; 9. a differential assembly; 10. a shaft sleeve; 11. and an output shaft.
Detailed Description
The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings, for the purpose of helping those skilled in the art to understand more completely, accurately and deeply the conception and technical solution of the present invention, and to facilitate its implementation.
As shown in fig. 1, the utility model provides an increase form hybrid power transmission system for electric motor car, including gearbox housing, engine 1, generator 2, driving motor 3, the one-level reduction gears who is connected with driving motor 3 and the second grade reduction gears who is connected with one-level reduction gears, second grade reduction gears is connected with generator 2 and differential mechanism assembly 9, and generator 2 is connected with engine 1, and differential mechanism assembly 9, one-level reduction gears, second grade reduction gears, generator 2 and driving motor 3 are located gearbox housing's inside.
Specifically, as shown in fig. 1, the power output end of the engine 1 is connected to one end of the rotor of the generator 2, the other end of the rotor of the generator 2 is connected to the two-stage reduction mechanism through a shaft sleeve 10, and the axis of the driving motor 3 is parallel to the axis of the generator 2. The one-level reduction gears include the one-level reduction driving gear 4 of being connected with driving motor 3, with one-level reduction driving gear 4 engaged with intermediate gear 5 and with intermediate gear 5 engaged with one-level reduction driven gear 6, one-level reduction driven gear 6 is connected with the second reduction gears, intermediate gear 5 is located between one-level reduction driving gear 4 and one-level reduction driven gear 6, the diameter of one-level reduction driving gear 4 is less than the diameter of one-level reduction driven gear 6. One-level speed reduction driving gear 4 and driving motor 3's output fixed connection, intermediate gear 5 is rotatable setting in gearbox housing's inside, intermediate gear 5's setting for driving motor 3 arranges the off-axis with generator 2 in gearbox housing, thereby can reduce gearbox housing at the ascending size of Y, and can avoid the problem of the casing volume increase that brings because of the gear is too big.
As shown in fig. 1, the secondary speed reducing mechanism includes an output shaft 11, and a secondary speed reducing driving gear 7 and a secondary speed reducing driven gear 8 which are engaged with each other, the secondary speed reducing driving gear 7 is disposed on the output shaft 11, the output shaft 11 is connected with the primary speed reducing mechanism and the generator 2, and the secondary speed reducing driven gear 8 is connected with the differential assembly 9. The output shaft 11 is connected with the rotor of the generator 2 through a shaft sleeve 10, and the output shaft 11 and the rotor of the generator 2 are coaxially arranged. First order speed reduction driven gear 6 and second grade speed reduction driving gear 7 are fixed setting on output shaft 11, and second grade speed reduction driving gear 7 is located between generator 2 and the second grade speed reduction driving gear 7, and second grade speed reduction driven gear 8 and differential mechanism assembly 9 fixed connection, and the diameter of second grade speed reduction driving gear 7 is less than the diameter of second grade speed reduction driven gear 8. The power that driving motor 3 produced slows down through the second grade, reaches high-speed ratio, satisfies the requirement of high-speed low torsion and drop cost, and driving motor 3 is high-speed motor, and high-speed motor diameter size is less to can reduce the ascending size of derailleur casing in X. The generator 2 adopts a low-speed motor, and the generator 2 is short in size, so that arrangement is facilitated, and the size of the transmission shell in the Y direction is reduced.
When the electric quantity of the power battery pack is lower than a set threshold value, the range is extended, the generator 2 is in an electric mode, the generator 2 drives the engine 1 to start, the engine 1 drives the generator 2 to operate after starting, the generator 2 is in a power generation mode, a part of electric energy is generated to charge the power battery pack according to the working condition requirement of the whole vehicle, and a part of electric energy is provided for the driving motor 3, so that the driving motor 3 operates to drive the vehicle to run.
The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above-mentioned manner, and various insubstantial improvements can be made without modification to the method and technical solution of the present invention, or the present invention can be directly applied to other occasions without modification, all within the scope of the present invention.
Claims (4)
1. Increase form hybrid power transmission system for electric motor car, including derailleur casing, engine, generator and driving motor, its characterized in that: the speed reducer is characterized by further comprising a first-stage speed reducing mechanism and a second-stage speed reducing mechanism, wherein the first-stage speed reducing mechanism is connected with the driving motor, the second-stage speed reducing mechanism is connected with the generator and the differential mechanism assembly, the generator is connected with the engine, and the differential mechanism assembly, the first-stage speed reducing mechanism, the second-stage speed reducing mechanism, the generator and the driving motor are located inside the transmission shell.
2. The hybrid transmission system for an extended range electric vehicle according to claim 1, characterized in that: the first-stage speed reducing mechanism comprises a first-stage speed reducing driving gear connected with the driving motor, an intermediate gear meshed with the first-stage speed reducing driving gear and a first-stage speed reducing driven gear meshed with the intermediate gear, and the first-stage speed reducing driven gear is connected with the second-stage speed reducing mechanism.
3. The hybrid transmission system for an extended range electric vehicle according to claim 1 or 2, characterized in that: the secondary speed reducing mechanism comprises an output shaft, a secondary speed reducing driving gear and a secondary speed reducing driven gear, the secondary speed reducing driving gear is arranged on the output shaft, the output shaft is connected with the primary speed reducing mechanism and the generator, and the secondary speed reducing driven gear is connected with the differential mechanism assembly.
4. The hybrid transmission system for an extended range electric vehicle according to claim 3, characterized in that: the output shaft is connected with the generator through a shaft sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122161642.8U CN216002170U (en) | 2021-09-08 | 2021-09-08 | Hybrid power transmission system for range-extending electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122161642.8U CN216002170U (en) | 2021-09-08 | 2021-09-08 | Hybrid power transmission system for range-extending electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216002170U true CN216002170U (en) | 2022-03-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122161642.8U Active CN216002170U (en) | 2021-09-08 | 2021-09-08 | Hybrid power transmission system for range-extending electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216002170U (en) |
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2021
- 2021-09-08 CN CN202122161642.8U patent/CN216002170U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230518 Address after: Floor 18, Building 13, Science and Technology Industrial Park, No. 717 Zhongshan South Road, Wuhu High tech Industrial Development Zone, Yijiang District, Wuhu City, Anhui Province, 241000 Patentee after: Wuhu Tairui Automobile Co.,Ltd. Address before: 241000 Building 8, science and Technology Industrial Park, 717 Zhongshan South Road, Yijiang District, Wuhu City, Anhui Province Patentee before: Chery Commercial Vehicles (Anhui) Co., Ltd. |
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| TR01 | Transfer of patent right |